Applicator brush



FIG. 1 illustrates a perspective view of an applicator brush showing my new design;

FIG. 2 illustrates a side view of the applicator brush;

FIG. 3 illustrates a top end view of the applicator brush; and,

FIG. 4 illustrates a bottom end view of the applicator brush.

The claimed design is shown broken away and indicates no particular length. 

We claim the ornamental design for an applicator brush, as shown and described. 